Disclosure Of Fair Value Measurement [Text Block]
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| Disclosure of fair value measurement [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [abstract] | |||||||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of assets [line items] | |||||||||||||||||||||||||||||||||||||
| Assets | — | — | — |
9,854,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
8,710,000,000
USD
|
— | — | — | — | — |
9,847,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | |||||||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of liabilities [abstract] | |||||||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [line items] | |||||||||||||||||||||||||||||||||||||
| Liabilities | — | — | — |
7,620,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
7,790,000,000
USD
|
— | — | — | — | — |
7,919,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, liabilities [abstract] | |||||||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of equity [abstract] | |||||||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [line items] | |||||||||||||||||||||||||||||||||||||
| Equity |
148,000,000
USD
|
3,472,000,000
USD
|
2,522,000,000
USD
|
2,234,000,000
USD
|
1,939,000,000
USD
|
2,054,000,000
USD
|
180,000,000
USD
|
1,928,000,000
USD
|
75,000,000
USD
|
2,187,000,000
USD
|
129,000,000
USD
|
2,510,000,000
USD
|
791,000,000
USD
|
75,000,000
USD
|
154,000,000
USD
|
3,936,000,000
USD
|
109,000,000
USD
|
920,000,000
USD
|
1,676,000,000
USD
|
252,000,000
USD
|
109,000,000
USD
|
3,048,000,000
USD
|
2,492,000,000
USD
|
1,928,000,000
USD
|
2,217,000,000
USD
|
169,000,000
USD
|
75,000,000
USD
|
110,000,000
USD
|
3,820,000,000
USD
|
257,000,000
USD
|
1,681,000,000
USD
|
196,000,000
USD
|
1,938,000,000
USD
|
2,480,000,000
USD
|
6,000,000
USD
|
75,000,000
USD
|
3,026,000,000
USD
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |